|
JAIST Repository >
b. 情報科学研究科・情報科学系 >
b10. 学術雑誌論文等 >
b10-1. 雑誌掲載論文 >
このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/14285
|
| タイトル: | A new DOA-based factor graph geolocation technique for detection of unknown radio wave emitter position using the first-order Taylor series approximation |
| 著者: | Aziz, Muhammad Reza Kahar
Anwar, Khoirul
Matsumoto, Tad |
| キーワード: | CRLB
DOA
Factor graphs
Geolocation
Taylor series |
| 発行日: | 2016-08-18 |
| 出版者: | Springer |
| 誌名: | EURASIP Journal on Wireless Communications and Networking |
| 巻: | 2016 |
| 開始ページ: | 189 |
| DOI: | 10.1186/s13638-016-0683-4 |
| 抄録: | This paper proposes a new geolocation technique to improve the accuracy of the position estimate of a single unknown (anonymous) radio wave emitter. We consider a factor graph (FG)-based geolocation technique, where the input are the samples of direction-of-arrival (DOA) measurement results sent from the sensors. It is shown that the accuracy of the DOA-based FG geolocation algorithm can be improved by introducing approximated expressions for the mean and variance of the tangent and cotangent functions based on the first-order Taylor series (TS) at the tangent factor nodes of the FG. This paper also derives a closed-form expression of the Cramer-Rao lower bound (CRLB) for DOA-based geolocation, where the number of samples is taken into account. The proposed technique does not require high computational complexity because only mean and variance are to be exchanged between the nodes in the FG. It is shown that the position estimation accuracy with the proposed technique outperforms the conventional DOA-based least square (LS) technique and that the achieved root mean square error (RMSE) is very close to the theoretical CRLB. |
| Rights: | © 2016 The Author(s)., Muhammad Reza Kahar Aziz, Khoirul Anwar, Tad Matsumoto, EURASIP Journal on Wireless Communications and Networking, 2016, 2016:189, DOI: 10.1186/s13638-016-0683-4. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
| URI: | http://hdl.handle.net/10119/14285 |
| 資料タイプ: | publisher |
| 出現コレクション: | b10-1. 雑誌掲載論文 (Journal Articles)
|
このアイテムのファイル:
| ファイル |
記述 |
サイズ | 形式 |
|---|
| 2557.pdf | | 1467Kb | Adobe PDF | 見る/開く |
|
当システムに保管されているアイテムはすべて著作権により保護されています。
|
